Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae)
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Universidad de Costa Rica
2008
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Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/5782 |
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RBT57822022-06-06T18:05:27Z Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) Flores, Guillermo Hilje, Luko A. Mora, Gerardo Carballo, Manuel Bemisia tabaci extractos vegetales madero negro Gliricidia sepium fagodisuasión plant extracts mother-of-cocoa phagodeterrence Bemisia tabaci is an important virus vector on a number of crops worldwide. Therefore, a preventive approach to deal with viral epidemics may be the deployment of repellents or phagodeterrents at earlier stages of plant development (critical period). Thus, the crude extract and four fractions thereof (water, water:methanol, methanol, and diethyl ether) of mother-of-cocoa (Gliricidia sepium, Fabaceae) were tested for phagodeterrence to B. tabaci adults under greenhouse conditions, on tomato plants, in Costa Rica. Both restricted-choice and unrestricted-choice experiments showed that the crude extract and some fractions exerted such effect on the insect. In the former (in sleeve cages), three fractions caused deterrence at doses as low as 0.1% (methanol), 0.5% (water:methanol) and 1.5% (diethyl ether). However, in the latter (plants exposed in a greenhouse) no one of the fractions performed well, suggesting that the deterrent principles somehow decomposed under the experimental conditions. Universidad de Costa Rica 2008-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5782 10.15517/rbt.v56i4.5782 Revista de Biología Tropical; Vol. 56 No. 4 (2008): Volume 56 – Regular number 4 – December 2008; 2099–2113 Revista de Biología Tropical; Vol. 56 Núm. 4 (2008): Volumen 56 – Número regular 4 – Diciembre 2008; 2099–2113 Revista Biología Tropical; Vol. 56 N.º 4 (2008): Volume 56 – Regular number 4 – December 2008; 2099–2113 2215-2075 0034-7744 10.15517/rbt.v56i4 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5782/5523 Copyright (c) 2008 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
institution |
Universidad de Costa Rica |
collection |
Revista de Biología Tropical |
language |
eng |
format |
Online |
author |
Flores, Guillermo Hilje, Luko A. Mora, Gerardo Carballo, Manuel |
spellingShingle |
Flores, Guillermo Hilje, Luko A. Mora, Gerardo Carballo, Manuel Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) |
author_facet |
Flores, Guillermo Hilje, Luko A. Mora, Gerardo Carballo, Manuel |
author_sort |
Flores, Guillermo |
title |
Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) |
title_short |
Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) |
title_full |
Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) |
title_fullStr |
Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) |
title_full_unstemmed |
Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) |
title_sort |
antifeedant activity of botanical crude extracts and their fractions on bemisia tabaci (homoptera: aleyrodidae) adults: i. gliricidia sepium (fabaceae) |
title_alt |
Antifeedant activity of botanical crude extracts and their fractions on Bemisia tabaci (Homoptera: Aleyrodidae) adults: I. Gliricidia sepium (Fabaceae) |
publisher |
Universidad de Costa Rica |
publishDate |
2008 |
url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5782 |
work_keys_str_mv |
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_version_ |
1810114574457765888 |